Moment of Inertia of Area of Section is the second moment of the area of the section about the neutral axis. And is denoted by I. Moment of Inertia of Area of Section is usually measured using the Meter⁴ for Second Moment of Area. Note that the value of Moment of Inertia of Area of Section is always positive. Typically, the value of Moment of Inertia of Area of Section is greater than 0.